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ML193 Gas Furnace

Merit® Series

ML193 Gas Furnace

Economical, high-efficiency gas furnace

Built for high reliability and efficiency, the ML193 keeps your home warm and cozy even on the coldest winter days, while helping you save money every month on your utility bills.


Here are some of the top features of the ML193:

Efficiency rating of 93% AFUE can save you hundreds of dollars each year compared to standard furnaces.

Stainless steel secondary heat exchanger allows the furnace to reach high efficiency levels by capturing additional heat.


Features and Benefits

Energy Efficiency

  • Efficiency rating of 93% AFUE—can save you hundreds of dollars each year, compared to standard furnaces
  • Sealed blower compartment—minimizes losses and maximizes efficiency and comfort. Less than 1% leakage at 1.0" ESP
  • Dual-fuel capability—can be combined with an electric heat pump to enhance comfort and fuel efficiency by alternating between electric and gas heat, optimizing energy use and minimizing heating costs

Home Comfort

  • Stainless steel secondary heat exchanger—allows the furnace to reach high efficiency levels by capturing additional heat
  • Robust blower assembly—exceeds industry standard airflow for even temperatures and improved comfort

Reliable Performance

  • Duralok Plus® heat exchanger—made of patented ArmorTuf™ aluminized steel to ensure high reliability and efficiency
  • SureLight® ignitor—silicon nitride construction for long product life and reliable operation
  • Durable steel cabinet—Made to last, with a resilient and attractive textured-paint finish
  • SureLight integrated control board—ensures full control of furnace operation

Warranty and Specs

Warranty and Specs

  • 20-Year Limited Warranty on heat exchanger
  • 5-Year Limited Warranty on covered components
  • This product may be eligible for valuable 10-Year Limited Extended Warranty coverage.


Rated 4.4 out of 5 by 36 reviewers.
Rated 5 out of 5 by very quiet Great product, quiet and takes little room. energy saving, easy maintenance September 18, 2014
Rated 4 out of 5 Quiet To be fair, anything that we had picked would have been better that what we had. Our previous furnace was 50 years old. This one is much quieter thankfully. It has not gotten cold enough for us to fully test it and see if it will be cheaper though. September 4, 2014
Rated 4 out of 5 by Works as described I purchased this unit about a month ago (July 2014). So far it works as described but it has not yet been operated through a winter. August 16, 2014
Rated 5 out of 5 by excellent Very efficient. Great improvement from my last one. August 11, 2014
Rated 5 out of 5 by Looks good. I purchased this new furnace in July and because of the warm weather I have yet to need to use it. Although, based on my good experience with the air conditioner purchased at the same time, I can predict very good things for this product. I can also say I love the appearance of this furnace and the duct work that goes with it. I don't feel a need to cover it up in my partially finished basement. July 30, 2014
Rated 5 out of 5 by Excellent product! This furnace is doing great in our new home. It is economical and does more than just "get the job done". June 23, 2014
Rated 1 out of 5 by Unit installed on new home, poor motor I am experiencing noise around the motor that only stops when pressure is applied. My HVAC technician attempted to tighten the screws, but that still did not resolve 'train-like' noise. March 17, 2014
Rated 1 out of 5 by Troubles-troubles Issues started within a year of installation, thermostat would change temp on its own, furnace would stop working, no heat even the blower is working. Don't understand why the builder opted for this product February 24, 2014

Recognitions and Certifications

AHRI Certified C Good Housekeeping CSA Certified Canada CSA Design Certified DualFuel HRAI Canada

© 2014 Lennox International Inc.